- Published in issue 3/1995 on page 28
LMD18245 3A/55V stepper motor driver
The LMD18245 is a fullbridge power amplifier which incorporates all the circuit blocks required to drive and control current in a brushed type d.c. motor, or one phase of abipolar stepper motor. The multitechnology process used to build the device cambines CMOS control and proteetion ctrcuttry with DMOS power switches on the same monolithic structure. The LMD18245 controls the motor current via a flxed offtime chopper technique.